Mochalkina, O R [Reading device for the blind based on the transformation of the optical image into a vibrotactile one]. [electronic resource] - Meditsinskaia tekhnika - 28-33 p. digital Publication Type: English Abstract; Journal Article ISSN: 0025-8075 Subjects--Topical Terms: Blindness--rehabilitationElectronics--instrumentationHumansReadingSensory Aids--instrumentation